Using singult Unify with coffeescript

[Dimitris Stefanidis]

Hi All, 

I have been fruitlessly trying to use singult.Unify with a coffeescript application.

I am using the minified build of the singult lib found here https://github.com/downloads/lynaghk/singult/singult.min.js

The following code

itemFn = (item) -> ["div", item]

singult.Unify([1,2,3,4], itemFn)

returns undefined. 

Stepping into the code shows that singult.Unify just performs a few assignments into this

which is window.singult and it returns the result of the last assignment which is "return this.g = f".

f is the exit function which is optional along with the enter update and key_fn.

This is the minified version of the singult.Unify function 

function y(a, b, c, e, d, f) {

    this.data = a;

    this.b = b;

    this.d = c;

    this.a = e;

    this.update = d;

    return this.g = f

}

I see that the Unify function in the coffee source takes an extra parameter (force_update_p) and ends with

"return this" and not "return this.g = f"

Calling

itemFn = (item) -> ["div", item]

singult.render(["div", singult.Unify([1,2,3,4], itemFn)])

throws cannot read property 0 of undefined while calling the following function

explode_p = function(v) {

  return v[0] === ":*:";
};

Any insights would be greatly appreciated cause I am pretty much stuck. 

Also I havent researched this alot but is it possible to escape-html while creating content nodes ?

Thanks,

Dimitris

[Kevin Lynagh]

Dimitris,

Congratulations!

You're the first user I'm aware of that's trying to use the JavaScript build of Singult = )

I haven't been syncing the JS build on the github page.

Have you tried grabbing the latest master and compiling it yourself?
You should be able to run the `make_js.sh` script in the toplevel (you'll need CoffeeScript installed).

Also I havent researched this alot but is it possible to escape-html while creating content nodes ?

Text strings are rendered as text nodes, not innerHTML or anything.

Is that what you mean?

[Dimitris Stefanidis]

Hi Kevin,

Thanks for the reply.

>> You should be able to run the `make_js.sh` script in the toplevel (you'll need CoffeeScript installed).

I had tried compiling on two different macs before posting but got ERROR - Cannot read: vendor/closure/closure/goog/base.js both times. 

Any ideas about this ?

>> Text strings are rendered as text nodes, not innerHTML or anything.

I meant the oposite of what I wrote. I have some text returned from the server in the form "<p>some content</p><p>something else</p>"

I would like for the paragraph nodes to be created but as I saw this 

else if string_p m #TODO: how to handle raw html?
    return document.createTextNode m

in the code I guess I cant do it right now. Right ?

[Kevin Lynagh]

>> You should be able to run the `make_js.sh` script in the toplevel (you'll need CoffeeScript installed).

I had tried compiling on two different macs before posting but got ERROR - Cannot read: vendor/closure/closure/goog/base.js both times. 

Any ideas about this ?

Sounds like you need to initialize the git submodule that contains the closure library:

    git submodule update --init

 

>> Text strings are rendered as text nodes, not innerHTML or anything.

I meant the oposite of what I wrote. I have some text returned from the server in the form "<p>some content</p><p>something else</p>"

I would like for the paragraph nodes to be created but as I saw this 

else if string_p m #TODO: how to handle raw html?

    return document.createTextNode m

in the code I guess I cant do it right now. Right ?

Yep.

There is an open issue on the github repository I believe.

I'm not sure what the nicest way to add this kind of feature would be.

Raw HTML be added as a special object in the same way that "unify" is a special datatype for Hiccup, but I'd need to give it some more thought.